Method for handling yarn



Dec. 19, 1961 w. A. NEWTON, JR

METHOD FOR HANDLING YARN Filed March '7, 1958 INVENTOR.

WILLIAM ARIS NEWTON,JR. BY MJM ATTORNEY Unite States This inventionrelates to an improved method and arrangement for handling yarn, andmore particularly to an improved method and arrangement for usingprewound yarn packages formed on headless tubes without the necescityfor rewinding in textile operations where a flanged bobbin yarn packageis required.

In various textile handling yarn operations, as for instance in anup-twister operation such as is sometimes employed in the twisting oftire cord strands in preparation for plying such strands together, it isdesirable or necessary to unwind the yarn overend from a flanged bobbinpackage. On the other hand, however, the yarn as supplied bymanufacturers is commonly formed on a disposable compressed paper tube,and accordingly heretofore it has been necessary and conventional torewind the yarn from the headless tube as supplied by the manufactureronto a flanged bobbin in order to form a flanged bobbin package suitablefor the overend unwinding and up-twisting operation. This rewindingoperation is time consuming and costly, particularly since substantiallythe only value achieved thereby is the mere transfer of the yarn onto aflanged bobbin for subsequent twisting of the yarn as it is unwound fromthe flanged bobbin. It is accordingly a major object and feature of thisinvention to eliminate the necessity for the rewinding of the yarn froma manufacturers package onto a flanged twister bobbin for subsequenttwisting of the yarn as it is unwound from the twister bobbin, whileretaining the advantage of unwinding the yarn overend from a flangedbobbin package.

A further feature of the invention is the provision of a unique methodof assembling a yarn package on a flanged bobbin.

Still a further feature according to the invention is the provision of aunique flanged bobbin package holder adapted to receive and hold a yarnpackage preformed on a headless tube.

Still other objects, features and attendant advantages will becomeapparent to those skilled in the art from a reading of the followingdescription of various physical FIGURE 3 is a perspective view withone-quarter section cut away, of the arrangement illustrated in FIGURE1, with a headless yarn package in place.

FIGURE 4 is an exploded view in perspective of the removable head end ofa modification wherein a bayonet type connection is employed forremovably mounting the removable flange on the bobbin barrel.

FIGURE 5 is a diametral section view of a further modification.

Referring now to the figures of the drawing, in FIG- URES 1-3 a flangedbobbin package holder, generally indicated at 11, has a barrel or core13, which may be of any suitable material such as wood, fiber, metal,etc., and which has suitably secured at one end thereof a disc atent Q&3

flange or head 15 having a suitable drive connection 17 formed on itsouter end face. The end flange 15 may be secured to the barrel 13 in anysuitable manner as for instance by bonding, screws, etc., as isconventional practice in the art. The flanged end having the driveconnection 17 formed thereon serves as the support and driving end ofthe yarn package assembly for employment in a conventional manner as anup-twister bobbin. The barrel, as in conventional practice, has an axialbore formed therethrough for receiving a spindle upon which a flyer (notshown) may be mounted at the outer end thereof.

The opposite end of the barrel has a reduced diameter threaded portion19, upon which a second removable flange 21 is adapted to be removablymounted through the medium of a complementary screw threaded bore 23formed in the center thereof.

Formed on the inner face of each of the end flanges 15 and 21 is anannular recess or groove 25, 27 which is preferably substantiallycomplementary to the ends of a headless tube 29, upon which tube a yarnpackage 31 has been prewound prior to putting the tube 29 onto thebarrel 13 of the flanged bobbin holder 11.

Preferably the manufacturers or other prewound'yarn package formed onthe headless tube 29 has a build such that the ends of the yarn packageare substantially flat, although the invention is adaptable toemployment with yarn packages wherein the ends of the packages are notprecisely flat. To this end the inner faces of the end flanges haveformed or secured thereon, as by cement, a layer 33 of soft resilient,preferably somewhat elastic, material such as felt, sponge rubber, etc.,in order to permit the inner face which is contiguous to the yarnpackage to conform substantially to the yarn package end surface so asto prevent possible yarn entrapment difliculties which might arise inunwinding.

In utilizing the arrangement described above, the yar package 31 isformed on the disposable headless cardboard tube 29 in any conventionalor other suitable manner, and the tube with the yarn prewound thereon,forming a prewound headless yarn package, is then slipped over thebarrel with the removable flange removed from the barrel during thisassembly operation. It is conventional practice to form a yarn packageon the tube with the ends 29a, 29b of the tube protruding out for /e toinch or the like beyond the ends of the yarn package build. Theprotruding end 29a of the tube adjacent the end flange 15 is fitted intothe annular recess 25, with the adjacent end of the yarn package restingon the soft resilient inner facing 33 of the end flange 15. Then theremovable end flange 21 is screwed onto the complementary screw threadedend 19 of the barrel, while the adjacent protruding end of the tube isfitted into the annular recess 27 formed on the inner wall of theremovable flange 21. The removable flange 21 is screwed onto the barrelwith suflicient tightness to suitably hold the tube 29 in place whileproviding a light resilient end force on the yarn package 31 Wound onthe tube in order to permit ease of unwinding of the yarn therefrom.

The package assembly thus formed is now ready for use as in aconventional up-twister, and when employed for such use the assembly isplaced with the drive connection 17 in engagement with a suitablecomplementary drive means on a driven spindle, a flyer of any desired orconventional construction being mounted on the outer end of the spindleextending through the axial bore 13a formed in the barrel, the flyerbeing disposed as in conventional practice adjacent the outer face ofthe end flange 21 and being rotatable about the spindle axis to providefor over-end unwinding and twisting of the yarn from the bobbin. Uponthe exhaustion of the yarn from the package assembly the exhaustedbobbin assembly may be removed from the spindle, the removable flangeunscrewed from the barrel and the disposabble tube removed, whereupon afresh full tube 29 may be slipped onto the barrel 13 and the removableflange 21 again secured to the barrel. The package assembly is thus onceagain ready for use as an unwinding twister bobbin assembly.

In FIGURE 4 there is shown an alternate arrangement employing a bayonettype coupling for removably mounting the removable end flange onto thebobbin package holder barrel. In this arrangement a pair of detents 119aare formed on a reduced diameter end portion 119 of the barrel 113 and acomplementary bayonet grooved locking portion in the form of twocomplementary cam grooves 12-3 formed on the inner surface of acomplementary axial bore 125 formed in the removable end flange 121. Theoperation of this arrangement is substantially similar to that of thearrangement illustrated in FIGURES 1-3, except that the removable endflange is attached to the barrel by the simple procedure of sliding theend flange axially onto the complementary end portion and then impartingan angular motion to the end flange 121 relative to the barrel 113 inorder to lock the complementary bayonet connection 119a, 123 between thebarrel 113 and the end flange 121. This arrangement is advantageous inproviding for quick connection and disconnection of the removable endflange, however the arrangement of FIGURES 1-3 is in some instances moreadvantageous in that it is adaptable to varying lengths ofheadlesspackages.

In FIGURE 5 a further mode of practicing the invention is illustrated,wherein the removable end flange 221 is resiliently biased into contactwith the adjacent end of the preformed yarn package 231. To this end,the barrel 213 has formed at the removable flange end a reduced portion219 having threads 219a formed on its outer end and being adapted toreceive a securing nut 220. The removable end flange 221 has a smoothbore 223 complementary to the reduced end portion 219 of the barrel 213and is resiliently biased toward the opposite end flange through themedium of a compression spring 235 surrounding the reduced barrel endportion 219 and seated preferably in recesses '237, 239 formedrespectively in the outer end face of the removable end flange 221 andthe adjacent end face of the removable securing nut 220. Thisarrangement is also advantageous in that it accommodates various lengthsof headless packages and tubes.

Although various physical embodiments have been illustrated anddescribed in detail herein, it will be apparent to those skilled in theart that such is only by way of illustration and that many modificationsand improvements may be made Without departing from the scope and spiritof my invention. For instance various other disconnect couplings may beemployed between the barrel and the removable end flange, or in someinstances one might make the barrel separable into two sections eachhaving an end flange secured thereon, the tube and prewound packagebeing insterted and the tube removed by uncoupling the barrel sections.Accordingly, it is to be understood that the invention is not limited bythe specific illustrated embodiments but only by the scope of theappended claims.

That which is claimed is:

1. The method of handling yarn comprising fitting a disposable headlesstube having a substantially planoended yarn package wound thereon aboutthe barrel of a bobbin having a plane-faced flange mounted at one end ofsaid barrel and a removable plano-faced flange adapted to be removablyfitted onto the opposite end of said barrel, then removably mountingsaid removable flange on said opposite end of said barrel andinter-engaging each of said lano-faced flanges in contiguous relationwith a respective plano end face of said package, and unwinding saidyarn over-end over one of said end flanges.

2. The method of handling yarn comprising winding a plane-ended yarnpackage onto a disposable headless tube, sliding said tube with saidpackage thereon onto the barrel of the bobbin having a plano-facedflange mounted at one end of said barrel and a removable plano-facedflange adapted to be removably secured to the opposite end of saidbarrel, then removably securing said removable flange and barreltogether with said removable yarn and package disposed in securedrelation about said barrel and in substantially fully contiguouspackage-to-flange interenging relation between said flanges, and thenunwinding said yarn overend over one of said end flanges of said bobbinwhile imparting a twist to said yarn as it is unwound.

3. The method according to claim 1, further including the resilientcushioning of said package at both ends thereof at the zone ofpackage-tdfiange interengagement.

References Cited in the file of this patent UNITED STATES PATENTS216,666 Fay June 17, 1879 503,227 Benham Aug. 15, 1893 1,038,249 WestSept. 10, 1912 1,062,005 Hebden May 20, 1913 1,420,094 Green June 20,1922 2,119,963 Ramsdell June 7, 1938 2,122,290 Lewis et a1. June 28,1938 2,649,683 Henry Aug. 25, 1953 2,686,953 Pike Aug. 24, 1954 FOREIGNPATENTS 107,178 Australia Sept. 10, 1927 353,747 Great Britain July 30,1931

